CN104108077A - Hydraulic tightening bench vice allowing opening distance of two vice jaws to be adjusted and located rapidly - Google Patents

Abstract

A hydraulic tightening bench vice allowing the opening distance of two vice jaws to be adjusted and located rapidly mainly solves the problems that according to bench vices in current markets, a single-start thread screw rod is rotated to change the position of a nut to adjust the opening distance of two vice jaws, the speed is extremely low, and operation is quite inconvenient. The main structure of the novel bench vice is composed of the following parts, namely, a pulling handle, a switch, a fixed vice jaw base, a movable vice jaw, a sliding seat, a rolling wheel pull rod, a small gear rack, a long gear rack, a long travel electromagnet, a pressing handle, a spiral tightening handle, an oil cylinder assembly, a pin shaft, a torsional spring, a cushion plate, a base plate, a pressing ring and the like. Two operation modes are adopted, namely, a hydraulic clamping mode and a spiral handle tightening operation mode are adopted, wherein the opening distance of the two vice jaws is moved, adjusted and located mechanically when the hydraulic clamping mode is adopted. According to the hydraulic tightening bench vice allowing the opening distance of the two vice jaws to be adjusted and located rapidly, the mutual positions of a pair of the gear racks meshed with each other are changed to adjust and locate the opening distance of the two vice jaws, and therefore operation is simple and rapid. Particularly, the advantages of the novel bench vice can be showed obviously under the situation that the sizes of clamped workpieces need to be changed frequently. The hydraulic clamping force is controllable, time and labor are saved, and the hydraulic tightening bench vice allowing the opening distance of the two vice jaws to be adjusted and located rapidly mainly is convenient to use and easy to popularize.

Description

Can quick adjustment and the dehisce bench vice of distance hydraulic clamp of location two jaws

Affiliated technical field:

The present invention relates to a kind of hand-operated tools that can clamp various shape workpieces, especially can realize the distance of fast moving and adjusting two jaws according to the size of clamped workpiece, and adopt the bench vice of hydraulic clamp workpiece.

Background technology:

At present, known bench vice in use, according to clamped workpiece size, regulates the distance of two jaws.Single-head screw by rotation on movable clamp port with determine single head nut on jaw seat coordinate precession and back-out, drive movable clamp port and slide to move left and right, and then distance between change two jaws.If want clamping work pieces, the handle that turns clockwise, if will unclamp workpiece, is rotated counterclockwise handle.If nut, the pitch of screw rod is T=4mm, needs the distance L=120mm of adjusting, the number of turns N=L/T=30 circle that screw rod will rotate.If rotate 1 circle each second, rotary handle 30 to enclose, 30 seconds consuming time, i.e. half a minute.Effort, time-consuming again, very inconvenience.

Patent of invention content:

The present invention solves the technology that its technical problem adopts: utilize a pair of intermeshing tooth bar (profile of tooth is triangle or trapezoidal) to come conducting pressure and moment of torsion, after utilizing these two tooth bars separately (after disengaging), push-and-pull regulates the relative position of two tooth bars rapidly, and then can change the distance of two jaws.After adjusting to the right place, two tooth bars intermesh, and then carry out clamping work pieces with hydraulic jack, or use spiral tightly clamping work pieces, have two kinds of clamping modes available.Clamping force size is good to be controlled.Laborsaving again, save time again.

Brief description of the drawings:

Below in conjunction with drawings and Examples, the present invention is further described:

Fig. 1: structure chart of the present invention and clamped condition figure.

Fig. 2: movable clamp port and the gliding mass structure chart in the time of mobile adjustment state.

Fig. 3: movable clamp port

Fig. 4: gliding mass

Fig. 5: determine jaw seat Figure 13: lock chassis handle

Fig. 6: pinion rack Figure 14: handle and switch assembly

Fig. 7: pull bar and parallels Figure 15: the rotatable tight iron of movable clamp port

Fig. 8: backing plate Figure 16: the tight iron of circular arc movable clamp port

Fig. 9: chassis Figure 17: two tooth bar thread forms interfere situation analysis and

Figure 10: trim ring thread form angle determine

Figure 11: long tooth bar Figure 18: circuit diagram

Figure 12: spiral is tightly Figure 19: the 3 dimensional drawing of this invention

Detailed description of the invention:

The present invention has following main parts size to form:

(1) handle and switch, (2) movable clamp port, (3) the tight iron of movable clamp port, (4) slide, (5) pull bar and parallels, (6) pinion rack, (7) determine jaw seat, (8) long stroke (15mm) electromagnet, (9) pressure handle, (10) bearing pin 1, (11) oil cylinder sub-assembly, tightly handle of (12) spiral, (13) long tooth bar, (14) bearing pin 2 and torsion spring, (15) backing plate, (16) chassis and trim ring.

Movable clamp port (2) Fig. 3: Fig. 4 connects to form component by bearing pin (10) with slide (4).Oil cylinder sub-assembly (11) and spiral have been installed tightly (12) inside its underpart, handle and switch (1) and the tight iron of movable clamp port (3) have been installed in its top.Above sub-assembly is the core component of this invention.Pull (1), adjustable two jaw distances, press pressure handle (9) and rotation (12) can make two jaw clamping work pieces.

Slide (4) Fig. 4: its inner cavity top is fixed wtih long tooth bar, plays a part location and supports movable clamp port.

Oil cylinder (10) is the single-phase oil cylinder sub-assembly that adopts hydraulic tongs CYO-XXX, and it only plays the clamping action to workpiece, thereby oil cylinder piston stroke can be very short, has 5 mm just enough.Oil cylinder resets by spring.Oil cylinder sub-assembly is with the plunger displacement pump of manual pressure handle.This oil cylinder energy releasing pressure automatically oil return, when pressure reaches XXXkg/cm ²when (X ton), designed safe pressure relief device have " clickly " sound alert operator, stop action.External pressure adjusting pressuring valve, does not need overall structure to remove.This oil cylinder sub-assembly need, through the transformation of the way, be connected in series a 2/2-way magnetic valve by oil cylinder two ends.The length of the hand handle of hand piston pump is changeable, while needing pressurization, lifts handle, and sleeve pipe, under the effect of spring, is advanced to turning joint place, now can repeatedly press handle pressurization.In the time not using handle, sleeve pipe is pulled back, handle just lets droop, to save space, is unlikely to affect other operations.

Long tooth bar (13) and pinion rack (6) are the vital parts of these bench vice two jaw location and carrying.The profile of tooth angle of tooth bar of rectificating should ensure that pinion rack should be able to easily freely rotate the in the situation that of unloading, any resistance that do not have, otherwise electromagnet will draw motionless pull bar and parallels (5).Pinion rack is in the time clockwise rotating as can be seen from Figure 17, and the 1st, the 2nd liang of tooth just violated and resisted with large tooth bar, and the the the 4th, 5,6,7,8 teeth can easily produce, and the 3rd tooth is in critical condition.Thereby the 1st, 2 liang of sound of baby talk shapes must be repaired, or simply cancel.Pinion rack, under the effect of torsion spring, always relies on it and is adjacent to large tooth bar.(Fig. 2)

The effect of backing plate (15): A, it is the little slideway of slide; B, it is the axis of rotation of fixing pinion rack (6) and bearing pin and torsion spring (14); C, the height of fixed electromagnet (8) capable of regulating electromagnet.D, behind two jaw location, while exerting pressure, the boss on backing plate plays the effect of tie-strut and parallels (5).Pinion rack (6) can not be separated with long tooth bar (13).Reaching of these four functions, size is all very crucial, if directly cast out to reprocess in jaw seat determining, all cannot be guaranteed. (Fig. 8)

Pull bar and parallels (5) (Fig. 7) are driven by electromagnet (8).When electromagnet obtains when electric, pull bar and parallels (5) are twitched to the right.When mobile beginning, the square iron of pull bar and parallels (5) afterbody leaves the boss on backing plate (15), and pinion rack (6) loses support.Pull bar and parallels (5) continue to move to right again, and pull bar drives pinion rack (6) to rotate counterclockwise, and long tooth bar (13) and pinion rack (6) are thrown off.Now slide (4) can freely be moved left and right.In the time of electromagnet dead electricity electricity, pull bar and parallels (5) are driven by electromagnet and reset.Pinion rack (6) resets and relies on long tooth bar (13) under the effect of torsion spring.

Spiral (12) effect (Figure 12) is tightly: at movable clamp port and determine on jaw basis after positioning, and the effect of only playing clamping and unclamping workpiece, thereby its screw size is very short.Turning clockwise is clamping work pieces, and being rotated counterclockwise is to unclamp workpiece.Due to the existence of hydraulic cylinder pressure handle, limit its whole circle rotation, the rotation of can only half-turn partly enclosing the land, fortunately only need turn several times.

The tight iron of movable clamp port (3) Figure 15: be also can rotate in order to ensure movable clamp port tight iron of movable clamp port (3) in the rotation process of clamping work pieces thereupon, and be adjacent to all the time workpiece and make two jaws and workpiece contact-making surface keeping parallelism.Determining jaw Jin Tie center, to cut out " V " shape translot be in order to prevent that clamping cylindrical workpiece skids.This patent has also been introduced another kind of outstanding arc form, and structure is simpler, also can guarantee clamping work pieces.Figure 16

Determine jaw seat (7) Fig. 5, chassis and trim ring (16) figure (9), figure (10), lock chassis there is no any variation Figure 13, is still retaining former design.

In circuit diagram Figure 18, K1 is mounted in the hand switch on handle, and K2 is mounted in the microswitch on slide (3), and D1 is the coil of 2/2-way magnetic valve, and D2 is magnet spool.

Operation sequence:

(1), hold handle and K switch 1 (1) by one, power supply 220V connects and after transformation rectification, exports 36V direct current, two logical hydraulic valve adhesives, make hydraulic system unloading, under the spring action of unidirectional oil cylinder (11) in oil cylinder, connecting rod retraction, and drive movable clamp port (2) to rotate counterclockwise an angle, unclamp workpiece, and touch microswitch K2 (being fixed on slide (4)), make its connection, at this moment electromagnet (8) obtains electric and action, drive pull bar and parallels (5) retraction, make pinion rack (6) hour hands rotate 6 °, two tooth bars (6) and (13) of original engagement are disengaged.Completing of this process, only uses several seconds.Now, can manually freely pull movable clamp port (2) and slide (4) to move left and right.(finger should be pinned K switch 1 to keep two logical hydraulic valve work always).(Figure 16)

(2), between two jaws, put into and want after clamping work pieces, with hand propelled movable clamp port and slide, two jaws are all contacted with workpiece.At this moment can unclamp the finger of originally pinning K switch 1, hydraulic valve resets simultaneously, and hydraulic system no longer unloads.

(3), system dead electricity: electromagnet (8) return simultaneously.

(4), the process that workpiece is clamped: press the pressure handle (9) of hydraulic planger pump, piston rod slowly stretches out, the clockwise micro-rotation of movable clamp port (2).There are two kinds of possibilities: A. two tooth bar correct engagement, slide (4) is motionless, and movable clamp port (2) is directly by Workpiece clamping; B. two tooth bars can not correct engagement, and pull bar and parallels (5) can not reset completely, are blocked by pinion rack (6).Now plunger depressed pump pressure bar pressure handle, movable clamp port clockwise rotates and drives slide and large tooth bar to move to left simultaneously, makes very soon two tooth bar positions align, and correct engagement.Pull bar and parallels (5) reset, and parallels is in pinion rack (6) below, support pinion rack, make it can not throw off long tooth bar.Slide (4) is no longer moved to the left.Continue to press pressure handle, movable clamp port (2) turns clockwise around bearing pin, and workpiece starts clamped gradually.

(5), unclamp workpiece, repeat the action of (1).So far, complete a working cycles.

(6),, if the workpiece size being accommodated is basically identical, enable spiral tightly (12).According to the location of workpiece size, repeat the action of (1)～(5), then just with spiral tightly (12), clamp and unclamp workpiece.Because movable clamp port is equivalent to a lever, bearing pin 1 (9) is the fulcrum of lever.The arm of force: weighing arm approaches 2:1, thereby still labour-saving very.In the situation that clamping force is certain, screwing force is only the half of clamping force.And the screwing force of existing bench vice will, much larger than clamping force, overcome because screwing force also will produce an additional moment moment that clamping force produces.

(7), spiral should be return original position after tightly (12) being used, otherwise can affect hydraulic clamp operation below.

(8), whole system is under the state of clamping work pieces and under long-time idle state, and power supply disconnects.Only in the time adjusting the distance that two jaws separate and when unloading, just switch on power, and just can complete a few second.Thereby power saving, reliable operation.

Claims (7)

1. can quick adjustment and the dehisce bench vice of distance hydraulic clamp of location two jaws, it is characterized in that: utilize the tooth bar that a pair of intermeshing tooth form is triangle to come transmission of pressure and moment of torsion, after utilizing two tooth bars separately to disengage, can move rapidly and regulate the size of two jaw distances, make it consistent with workpiece size.

2. according to energy quick adjustment claim (1) Suo Shu and location two jaws dehisce distance the bench vice of hydraulic clamp, it is characterized in that: when electromagnetic actuation, bar twitching and backing plate, backing plate first exits after support, short tooth bar rotates an angle, two tooth bars are disengaged, now can Quick push/pull movable clamp port and slide mass sub-assembly.

3. can quick adjustment and the dehisce bench vice of distance hydraulic clamp of location two jaws, it is characterized in that: two jaws that oneself adjusts to the right place, by hydraulic jack action, are clamped in workpiece wherein tightly.

4. can quick adjustment and the dehisce bench vice of distance hydraulic clamp of location two jaws, it is characterized in that: have two kinds of modes of operation available:

A, needs the frequent operator scheme that regulates two jaws to open size: mechanical adjustment two jaws open the mode of distance, location and hydraulic clamp.

B, the operator scheme that clamped workpiece size is fixed substantially: use spiral tightly the mode that clamps and unclamp.

5. according to energy quick adjustment claim (3) Suo Shu and location two jaws dehisce distance the bench vice of hydraulic clamp, it is characterized in that: the tight iron of movable clamp port can be made into turnable structure (Figure 15).

6. according to energy quick adjustment claim (3) Suo Shu and location two jaws dehisce distance the bench vice of hydraulic clamp, it is characterized in that: the tight iron of movable clamp port also can be made into arc surface with the side contacting of workpiece, determining to have " V " shape groove in case clamp cylinders shape part slippage (Figure 16) in jaw plane.

7. this can quick adjustment and the dehisce bench vice of distance hydraulic clamp of location two jaws, it is characterized in that: just in the time adjusting two jaw opening sizes, just connect circuit, the time of energising is moment, can guarantee that by mechanical grip work is more reliable, thereby very energy-conservation, very safe again.